Add translation mailing list to README.md
Add translation mailing list to README.md

Link to the new translation mailing list from README.md

syscoin/syscoin,domob1812/crowncoin,syscoin/syscoin,domob1812/crowncoin,Infernoman/crowncoin,domob1812/crowncoin,Infernoman/crowncoin,syscoin/syscoin,Crowndev/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,Infernoman/crowncoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,Crowndev/crowncoin,Crowndev/crowncoin,Infernoman/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,syscoin/syscoin,syscoin/syscoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin